Re: Equivalence (oldie)

[Grimer]

At 11:07 pm 19/05/2006 -0400, you wrote:
>hohlrauml6d wrote:
>
>-----
>Most of us know that 'equivalence' refers to the comparison of an inertial
>reference frame and gravity.  In other words, there's no difference
>between gravity and inertia.
>-----
>
>On the earth the gravitational field through me is slightly convex.  (If
>that's hard to visualize, think of the field through the Pacific Ocean,
>say.)  Can you guys think up any accelerated frame that could have a
>similar geometry?
>
>If not, that's at least one "simple" test for gravity v. inertia.
>
>Note that in a spinning torus designed to simulate gravity in space the
>effective field is approximately concave, which of course also differs.
>
>- Walter


Well put.

Which is suggestive of action and reaction; 
gravity being an external action of the 
[nu]th atmosphere and inertia being the reaction 
of the [nu(+or-)1]th atmosphere.

Frank